Clean up resources

The tutorials in the go dos talk about cleaning resources so as to not incur costs. To quote from that section “If you no longer need the resources you created using this article, delete them to avoid incurring any charges.” I tried looking into the link provided, but was not clear on the following:

  1. Do we incur costs for saved experiments as well?
  2. How does one save experiments to load them later if one has to delete experiments and projects to save costs?